Native to North America, but widely naturalized in Europe. Naturalist 10: 203. Four varieties are recognized by Missouri Botanical Garden (2019): var. ... Elodea canadensis Michaux. Elodea canadensis is a submerged, rather densely bushy, aquatic perennial (CABI, 2005). Elodea canadensis Michx. nam. Canadian pondweed. It grows indefinitely at the stem tips, and single specimens may reach lengths of 3 m or more. Ditch with a dense colony of flowering plants, Illustration showing leaf and flower detail, Hackney, P. Distribution of some submerged aquatic macrophytes in the Eglinton Canal, Galway; "First confirmed record of Elodea canadensis Michx. Monocotyledonous Herbs. An older name for this genus is Anacharis, which serves as a common name in North America. is universally accepted for this common, widespread waterweed. 1969. (1.7 cm) long and 0.16 in. Source: Common waterweed (Elodea canadensis), a native aquatic plant, grows … Pybus, C. and O'Halloran, P. 2009. Vascular – Exotic. Elodea Canadensis only grows in submerged conditions. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Elodea canadensis may be confused with Hydrilla verticillata or Egeria densa. latifolia (Casp.) This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Synonymous with and formerly known as Anacharis canadensis. APNI* Description: Attached dioecious submerged aquatic perennial; branched stems to 3 (-6) m long with crowded internodes near the apex and producing long thread-like, often reddish, roots at the lower nodes. Philotria canadensis (Michx.) It blooms in the spring (Wunderlin, 2003). Elodea is present in virtually every region of North America (Kartesz, 1999). This aquatic herb has stems that branch out between 20 and 30 cm in length, which tends to form dense monospecific stands that can cover hundreds of acres (DAISIE, 2009). Comm. Europe has been particularly affected with the first record dating back as far as 1836. common elodea, Canadian waterweed, broad waterweed, Canada waterweed. Common Name: COMMON WATERWEED: Coefficient of Conservatism: 1 Coefficient of Wetness: -5 Wetness Index: OBL Physiognomy: Nt P-Forb. Egeria densa is also a larger, bushier plant with longer leaves. Name: Date: Period: Measuring the Rate of Photosynthesis in Elodea Background Reading: Read the following passage. Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta – Vascular plants Superdivision: Spermatophyta – Seed plants Division: Magnoliophyta – Flowering plants Class The specimen shown in the photograph above was removed from French Hill Pond for study in October 2011. Like most aquatic weeds, high nutrient loads in the water will result in more vigorous growth of this species. Common name. Plant roots may be anchored in the muddy bottoms of small ponds. Synonyms: Anacharis canadensis, A. alsinastrum, Serpicula occidentalis, Elodea latifolia Natural Distribution & Ecology: From North America, introduced elsewhere, esp. Add comments or questions in the space in the right margin. Suggested Use: Water Plant, Naturalize, Rain Garden. NVS code Help. Farw., var. In waters of almost every kind and depth, including the Great Lakes. One should note that Elodea canadensis is an important food for ducks and other water birds. The fruit is an ovoid capsule, about 6 mm long containing several seeds that ripen underwater. Elodea is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. It lives in fresh water. Set plants out in pots or containers at the bottom of the water body or float plant cuttings/fragments in the water. 2000-. 1976. … Not recommended for large ponds where population control can be more difficult. It produces fragile, branching, tangled stems to 3.5’ long (10-12’ in the wild) densely clad with short, drooping, lance-shaped to ovate dark green leaves (to 5/8” long) in whorls of three. Common Names. Colonies in the wild provide excellent cover for fish, small crustaceans, insect larvae and snails. Young plants initially start with a seedling stem with roots growing in mud at the bottom of the water; further adventitious roots are produced at intervals along the stem, which may hang free in the water or anchor into the bottom. Flora category. Common Name: Common Waterweed: Scientific Name: Elodea canadensis Native or Non-native: Native: Illustration: Link to larger illustration: Large aquariums. angustifolia (Muhl.) Structural class. planchonii (Caspary) Farwell, Amer. In Bailey, var. Elodea canadensis (American waterweed or Canadian waterweed or pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America. Easily grown as a submerged aquatic, either anchored or free-floating, in water gardens in full sun. The temperature also plays a role because the plant does not like heat. McGregor, R. L. et al. W shore of Coffin Lake W of Colville, WA on the rd to Tiger; N 48.575995 W 117.555233 – Stevens Co. – 10/3/2011; weeds Canada 1–67. (Hydrocharitaceae) in Greece", https://en.wikipedia.org/w/index.php?title=Elodea_canadensis&oldid=993155722, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 December 2020, at 02:13. Elodea columbiana. The Alabama Plant Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland information for each species. Elodea canadensis. Family: Hydrocharitaceae: Common Names: Canadian, Rocky Mountain, or common waterweed: Eastern Washington: Native: Conservation Status: Notes: Click on any image to enlarge it. & Schmidt , Udora canadensis (Michaux) Nuttall 1818 Common names: Almindelig vandpest (Danish), American elodea, American elodea (United States), American elodea (English), American waterweed (Germany), anacharis (English), brede waterpest (Dutch), broad waterweed (English-United States), Canada waterweed (United States), Canadian pondweed (United States), Canadian pondweed … It is dioecious, with male and female flowers on different plants. Elodea canadensis, commonly called Canadian pondweed, is a submerged aquatic perennial that has become a popular plant for water gardens and cool water aquariums. It flowers from May to October. [12], It is an invasive species in Europe, Asia, Africa, and Oceania. The common name for the American or Canadian waterweed, Elodea canadensis, is Anacharis — an older term for the genus. Planch. It is frequently used as an aquarium plant. Elodea minor. H. St. John. Water gardens. NATIVE Leaf: generally crowded at stem tips, 3 per node on mid, upper stems; blade generally 5--15 mm, 2--5 mm wide, linear, obtuse or abruptly pointed at tip, flaccid or not. Elodea canadensis, commonly called Canadian pondweed, is a submerged aquatic perennial that has become a popular plant for water gardens and cool water aquariums. Reproduction: Vegetative. By absorbing nutrients, it helps control algae and keep waters clear. Common names: Elodea (pronounced el-oh-DEE-a), American elodea, common elodea, anacharis, Canada waterweed. E. canadensis is widely distributed on most continents. Legal Status. Europe; as you might guess, a cold water species (45-65 F.). 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